Malicious PDF — malware analysis report

Static analysis result for SHA-256 f989aa6b318078b6…

MALICIOUS

PDF

5.5 KB Created: sdtres
MD5: e7ff306b9bd9c0f4a971e510dc6aa26c SHA-1: ff8aa3a0752856403d6f3db066bd0df8ace21bcd SHA-256: f989aa6b318078b6d02672b2a9816bd7e98d74c1f00d98749046c04b9c119750
158 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1059.001 PowerShell

The sample is a PDF document that contains an embedded exploit targeting CVE-2010-0188 in Adobe Reader. This exploit is designed to allow arbitrary code execution when the document is opened with a vulnerable version of the reader. The critical heuristic firings and ClamAV detection strongly indicate this malicious intent. No specific malware family could be identified.

Heuristics 5

  • Adobe Reader LibTIFF XFA image exploit — CVE-2010-0188 critical CVE likely CVE_2010_0188
    PDF contains the CVE-2010-0188 exploit template: XFA JavaScript heap-spray setup, a generated TIFF image payload, and assignment of that TIFF data to an XFA image field rawValue to trigger Adobe Reader's LibTIFF parser.
  • ClamAV: Pdf.Exploit.CVE_2010_0188-10 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.CVE_2010_0188-10
  • Embedded script payload in PDF stream medium PDF_EMBEDDED_SCRIPT_PAYLOAD
    PDF stream bytes contain an HTML/XFA <script> tag without accompanying Windows shell-execution primitives — common in accessible XFA forms but worth surfacing for analyst review.
  • Embedded file low PDF_EMBEDDED
    PDF embeds a file attachment — could carry an executable or another weaponised document as a nested payload
  • XFA form low PDF_XFA
    PDF uses XML Forms Architecture — can contain script logic

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_file_obj0011.bin
399b3bcf56eee808a66153b5a55a13648b80529be6af5d858ba839b85a80ea92
pdf-embedded-file PDF EmbeddedFile object 11 at offset 0x45D 33240 bytes